Packaging and Labeling Services (U.S.) — NAICS 561910

An investor's primer. NAICS (North American Industry Classification System) code 561910 covers firms that package, label, and imprint goods their clients still own — the outsourced "last step" between a factory and a store shelf or a shipping box. This is a services and operations business, not a maker of packaging materials.

1. Overview

When a food brand needs its cereal boxes bundled into a warehouse-club multipack, when a supplement company needs pills blister-packed, or when a cosmetics start-up needs its bottles labeled, shrink-wrapped, and boxed for retail — much of that work is outsourced to specialist firms called contract packagers or co-packers. NAICS 561910 is the federal industry code for those firms: businesses whose main job is packaging and labeling client-owned materials, not manufacturing their own products [1].

Why it matters: contract packaging sits on top of two durable trends — brands outsourcing non-core work, and the growth of e-commerce and private-label goods that all need packing. It is a real, growing services market. But it is also low-margin, labor-driven, and highly fragmented, which shapes how money is actually made.

The routes in differ sharply by audience, so it is worth stating up front. There is essentially no clean, publicly traded pure-play in this industry. The economic activity is large, but it lives inside privately held co-packers, private-equity roll-ups, pharmaceutical contract manufacturers, and the value-added divisions of large logistics and packaging-materials companies. Private investors can buy or build a co-packing business directly (most are small enough to count as small businesses); public-market investors can only get diluted, indirect exposure through diversified proxies. Both routes are covered below.

2. What it is and how it's structured

In scope (NAICS 561910): establishments primarily engaged in packaging client-owned goods, which may include labeling and imprinting [1]. The customer generally owns the product; the provider supplies labor, equipment, quality control, floor space, and sometimes packaging materials. Illustrative services:

• Contract packaging, kitting, and assembly (variety packs, club-store multipacks)
• Blister packaging, pouch-filling, shrink-wrapping, and poly-bagging
• Apparel and textile folding and packaging
• Bottling/filling of client-owned liquids, powders, or aerosols
• Labeling, bar-coding, relabeling, and gift-wrapping bundled with the above [1]

Explicitly excluded — and this matters for reading the statistics:

• Turning inputs into a different product (e.g., mixing concentrate and water into soda) is manufacturing, classified in Sector 31–33 [1]. A firm that both makes and packs a product is usually coded to its manufacturing industry, not here.
• Packaging materials makers — the companies that produce the boxes, cans, films, and labels themselves — sit in manufacturing (paperboard NAICS 322, plastics NAICS 326, glass/metal, etc.), and commercial label printing sits in NAICS 3231 — not 561910.
• Packing and crating goods for transportation is NAICS 488991; general warehousing and storage is NAICS 493110 [7]. Third-party-logistics (3PL) firms that offer co-packing as a value-added service are generally coded to transportation/warehousing even though the shop-floor work is nearly identical.

These distinctions matter because many companies marketed as "packaging" are really manufacturers or logistics providers, not 561910 service businesses [1][7].

Ownership mix: overwhelmingly private and small. Federal data do not publish a public-versus-private split for this code, but the typical firm books only a few million dollars of revenue (see Section 3), and the industry is a long tail of regional, family-owned, and independent shops. The larger, more sophisticated end is increasingly private-equity-owned (roll-up platforms in food and pharma packaging), plus co-packing arms inside big public logistics and materials companies. Public "pure-play" ownership is effectively absent. Customer mix spans consumer packaged goods (CPG), food and beverage, supplements, pharmaceuticals and biotech, cosmetics, apparel, industrial products, and promotional retail.

3. How big it is

Federal statistics for the standalone industry (author's rounding of official figures):

A few things fall out of these numbers. Using the two figures that come from the same source and year, average revenue is roughly $6.3 million per firm (~$12.43B ÷ 1,964, Economic Census 2022). The average establishment has about 27 employees (52,301 ÷ 1,972, CBP 2023) — a small-business industry. Average pay works out near $49,000 per worker (~$2.56B ÷ 52,301, CBP 2023), consistent with a labor force that is heavily manual and includes substantial temporary and seasonal staff [3]. The U.S. Small Business Administration (SBA) sets the small-business ceiling at just $19.5 million in average annual receipts — an eligibility threshold for federal programs, not an industry average — which tells you the government treats all but a handful of these firms as small businesses [4].

Concentration is low. The four largest firms account for only about 20.1% of receipts, the top eight about 27.2%, the top 20 about 38.5%, and the top 50 about 52%; the industry's Herfindahl-Hirschman Index (HHI, a standard 0–10,000 concentration gauge where under 1,500 is "unconcentrated") is just 147.6 [5]. This is a genuinely fragmented industry.

Two undercount caveats — read them before quoting any market number. First, these figures cover employer businesses and are drawn from different years, so they should not be chained into a growth rate. County Business Patterns (CBP) and the Economic Census exclude non-employer (owner-operated) businesses, which are counted separately in Nonemployer Statistics [3][6]; the tiniest shops are therefore missing from the ~$12.43B total. Second, and larger, the Census figure counts only establishments whose primary business is packaging client-owned goods [1][2]. It deliberately excludes the same work when it happens (a) inside manufacturers that also co-manufacture, (b) inside 3PL/warehousing operations, and (c) inside pharmaceutical contract packagers coded to other industries. That is why private market-research estimates for "U.S. contract packaging" run far higher and wildly apart — commonly $20–25 billion, and some multi-industry definitions reaching $60–80+ billion — because they roll in materials, fulfillment, and captive operations that NAICS 561910 excludes [8][9][10]. Treat ~$12.43 billion as the narrow, apples-to-apples federal measure of the standalone service, and the big private numbers as a broader market definition, not a contradiction.

The federal file reports no industry-wide margin, capacity-utilization, input-cost, capital-expenditure, or working-capital figures; none is invented here.

4. The investable universe

There is no U.S.-listed pure-play contract packager. Public exposure is indirect and partial — in every case below, co-packing is a minority of the company's revenue, so the read-through to NAICS 561910 is diluted. Figures are company-wide and approximate. Exchange labels: NYSE (New York Stock Exchange), TSX (Toronto Stock Exchange), Xetra (the Deutsche Börse electronic exchange).

Public companies with co-packing exposure (co-packing is a slice, not the whole):

Formerly public: Catalent (was NYSE: CTLT), a large pharmaceutical contract-development-and-manufacturing organization (CDMO) with major packaging operations, was taken private by Novo Holdings in December 2024 for an enterprise value of ~$16.5 billion — removing one of the few sizeable listed proxies for regulated packaging [17].

Major private / private-equity-owned players (this is where the real pure-play activity sits):

Beyond these, Coregistics, Assemblies Unlimited, Econo-Pak, Jones Healthcare Group and thousands of regional independents populate the long tail — one industry directory alone lists more than 2,500 U.S. co-packing suppliers [23]. Large 3PLs including DHL Supply Chain, Kenco, and ODW Logistics also run co-packing operations as part of warehousing contracts. Federal data do not identify owners, and private-company disclosures are incomplete; the tables above are notable examples, not a census.

Bottom line for a stock picker: you cannot buy "the contract-packaging industry" on a public exchange. The listed names give you fractional exposure bundled with materials manufacturing or logistics; isolate the relevant segment before applying any valuation multiple. The concentrated bet is a private one.

5. How the money works

Co-packers are service businesses, not product owners — the client owns the goods and usually the packaging materials, so the co-packer's revenue is a fee for the work, not a markup on a product it sells. That single fact drives the economics.

How revenue is priced:

• Per-unit / per-piece rates (cents per pack, per bottle filled, per case built) on committed volume, or
• Labor-hour / machine-hour billing for variable or short-run jobs, plus
• Kitting and promotional-project fees, and
• Pass-through of any cartons, film, or labels the co-packer sources, often at a small handling margin.
• Higher-value work adds engineering, quality, serialization, and regulatory services.

Core costs are direct labor, supervision, quality staff, rent, maintenance, utilities, equipment depreciation, insurance, compliance, scrap, and rework. Material exposure is low when the customer supplies inputs, higher when the provider buys and carries them.

The levers that make or break margins:

• Line throughput and capacity utilization — machines and floor space are fixed costs; idle lines destroy margin, so keeping lines full and running fast is the whole game.
• Changeover / setup time — every switch between customer jobs is unpaid downtime; long changeovers on a high-SKU (stock-keeping unit) mix crush profitability.
• Labor cost and productivity — a labor-intensive business with high turnover and heavy reliance on temporary workers to absorb demand surges; wage inflation and staffing shortfalls hit margins directly [23][24].
• Automation — the main structural way to lift thin per-unit margins and reduce labor dependence, but it raises capital intensity.
• Program / customer concentration — revenue is often anchored to a few large programs; losing one, or a client bringing packaging back in-house, is the core revenue risk.

A useful investor dashboard therefore tracks: line utilization and throughput, output per labor hour, changeover time, yield/scrap/rework, on-time-in-full (OTIF) delivery, customer renewal and program duration, customer and site concentration, material pass-through terms, capex/automation needs, working-capital and inventory exposure, and quality deviations/recalls. These are far more informative than a generic packaging-material price index — and the federal datasets report none of them [3][5].

Why margins vary so much by segment: commodity food and beverage co-packing is competitive and low-margin — many small shops competing on price and proximity [23]. Regulated packaging (pharmaceutical, medical, cosmetics) earns better margins and stickier customers because it requires FDA-audited quality systems, serialization capability, and a lengthy qualification process — high barriers that protect pricing (see Sections 7 and 8) [25][27]. Working capital is relatively light because inventory is typically client-owned, which is one reason private-equity buyers like these assets.

6. What drives demand

• Outsourcing of non-core work. Brands hand packaging to specialists to cut cost (savings often cited around ~7–10%), free capacity, avoid hiring temporary labor, and speed time-to-market [8][33].
• New product launches and SKU proliferation. More variants, sizes, and limited editions mean more short-run packaging jobs.
• Promotional and seasonal packaging. Club-store multipacks, retail display units, holiday kits, and gift sets are surge work brands don't want to staff for internally.
• E-commerce and direct-to-consumer (DTC). Online orders need ship-ready, damage-resistant, dimensionally efficient packaging and a good "unboxing" experience — the fastest-growing demand segment [8][9].
• Private-label growth. Retailers scaling their own-brand assortments lean on co-packers instead of building in-house lines [8].
• Pharmaceutical and food-safety outsourcing. Drugmakers outsource final packaging, labeling, and serialization to specialists who can meet FDA requirements (Section 7); food-safety, allergen, and retailer standards make qualified food packagers more valuable — both structurally growing, higher-value segments [15][25].
• Supply-chain resilience and regulatory change. Customers may favor geographically diversified or domestic providers; new labeling, materials, and traceability rules create relabeling and repackaging work (while raising compliance cost).

Cyclicality: food and pharma packaging is relatively defensive (people keep eating and taking medicine), but promotional and discretionary packaging tracks consumer spending and retail marketing budgets, so the industry is only partly insulated from downturns. Growth is more likely to come from outsourcing, specialization, and acquisitions than from a single broad packaging cycle.

7. Regulation

Regulatory exposure depends on the product packed, the activity, and whether the provider is legally acting as packer, repackager, manufacturer, distributor, or logistics provider. Co-packers inherit the burden of whatever they handle:

• Pharmaceuticals — the biggest driver. Drug packagers must run FDA current Good Manufacturing Practice (cGMP) quality systems under Title 21 of the Code of Federal Regulations (CFR) Parts 210 and 211 — covering packing, holding, label control, production records, and quality systems [25]. They must also comply with the Drug Supply Chain Security Act (DSCSA), the 2013 law building an interoperable, unit-level track-and-trace system for prescription drugs [26]. Every saleable unit must carry a serialized product identifier — a GS1 (global standards body) DataMatrix 2D barcode encoding the National Drug Code (NDC), serial number, lot number, and expiration date — and a contract packager serving multiple drugmakers must manage separate serial-number pools and chain-of-custody records for each [27]. This is expensive, audited, and a real barrier to entry.
• Food and dietary supplements. The FDA applies food labeling rules (21 CFR Part 101) and preventive-controls/cGMP requirements (21 CFR Part 117) to firms that pack or hold food, with food-contact packaging compliance on top; the Food Safety Modernization Act (FSMA) underpins these preventive-controls rules [28].
• Consumer commodities and labeling. The Fair Packaging and Labeling Act (FPLA), enforced by the Federal Trade Commission (FTC) and FDA depending on the product, governs product identity, net contents, and the name and place of the manufacturer, packer, or distributor [29]. Labeling errors — net-weight, ingredient, nutrition, country-of-origin — can trigger recalls.
• Cosmetics. The Modernization of Cosmetics Regulation Act of 2022 (MoCRA) adds facility-registration and product-listing obligations [30].
• Workplace and transport. The Occupational Safety and Health Administration (OSHA) Hazard Communication Standard (29 CFR 1910.1200) requires chemical labels, safety data, and training for a machinery-and-labor-heavy floor [31]; Department of Transportation (DOT) hazardous-materials rules apply to aerosols and chemicals. State and local weights-and-measures, fire-code, waste, and permitting rules also apply.

The pattern: regulation is a moat for the firms that can meet it. Commodity co-packing is lightly regulated and price-competitive; regulated segments reward packagers that invest in compliance with stickier customers and better margins. A private-investment diligence review should pin down who owns label approval, bill-of-material changes, batch release, line clearance, recall records, customer audits, and regulatory liability.

8. Competitive dynamics and consolidation

The federal data confirm a highly fragmented industry — top-four firms at ~20% of receipts, top 50 at ~52%, and an HHI of 147.6 [5]. Thousands of small regional shops compete primarily on flexibility, proximity, speed, and price (freight and response time are real costs, so regional density matters), while a smaller set of larger platforms competes on scale, automation, geographic footprint, and regulatory qualification [23].

Switching costs vary widely. A customer can move simple manual kitting relatively easily; a validated pharmaceutical or food-safety program — with customer-specific tooling, data systems, audits, and process history — is much harder to transfer.

Consolidation is the defining trend. Private equity has been an active buyer of contract packaging and specialty-labeling assets, drawn by asset-light economics, recurring programs, and the chance to build regional shops into national platforms via add-on acquisitions [20][32]. Deal activity picked up notably in 2024–2025 — platform investments rose and food-and-beverage packaging was especially active as buyers sought "regulatory-insulated," consumer-staple-linked assets [20][32]. Recent examples: HCI Equity sold MSI Express to Nonantum Capital in 2025; Crestview acquired Smyth Companies in 2025; PCI Pharma took a strategic investment led by Bain Capital and Kohlberg in 2025; and Sharp has operated under CD&R since 2021 [18][19][20][21]. The 2026 outlook points to more but smaller deals, driven by divestitures from recent mega-deals and PE owners reaching the end of their hold periods [32]. These are examples of sponsor activity, not proof that industry-wide concentration has jumped — the base remains fragmented.

For a private investor, this is the key structural story: a fragmented base of small operators plus motivated PE consolidators equals an active market for buying, building, and selling co-packing platforms. Integration risk is high, though — customer-specific equipment, inconsistent quality systems, and local-management dependence can erase the expected benefits.

9. Risks

• Utilization and labor. Chronic hiring difficulty, high turnover, and reliance on temporary workers make labor the defining operational risk; volume declines or lost contracts leave fixed labor and equipment underused, and wage inflation flows straight to thin margins [23][24].
• Customer concentration and in-sourcing. Revenue anchored to a few programs; a client that loses volume, switches vendors, or brings packaging back in-house can gut a co-packer's book.
• Thin margins and cost pass-through timing. Commodity co-packing competes on price; lags in passing through film, carton, label, energy, and freight increases squeeze profitability when contracts lack pass-through terms.
• Capital intensity of automation. Escaping the labor trap requires ongoing capex, engineering, and sufficient volume — favoring scale players over small shops.
• Regulatory and quality failure. In food and pharma, an FDA finding, a mislabel, a mix-up, or a traceability failure can cause recalls, fines, lost contracts, liability, and reputational damage.
• Cyclical / discretionary demand. Promotional and seasonal work follows consumer spending and retail marketing budgets.
• Technology and data risk. Labeling and pharmaceutical traceability depend on accurate enterprise systems and controlled data.
• Leverage risk. PE ownership can accelerate expansion, but excessive debt makes a labor- and utilization-sensitive business less resilient.
• Trade / reshoring and measurement. Tariffs and supply-chain relocation can move where packaging work happens; and employer-only federal statistics may understate activity from the smallest operators.

10. How to invest, and the outlook

Public-market routes (indirect, diluted). No listed pure-play exists. The practical options are diversified proxies where co-packing is a minor contributor: Sonoco (SON) for packaging-materials-plus-co-packing; Ryder (R), GXO (GXO), and DHL Group for logistics firms whose value-added services include co-packing; and Thermo Fisher (TMO, Patheon) or CCL Industries (CCL.B) for regulated-pharma packaging and label/specialty-packaging exposure respectively [11][12][13][14][15][16]. An investor buying these is mostly buying materials manufacturing, contract logistics, or broad healthcare services — not the packaging-services industry itself, so size the exposure accordingly and isolate the relevant segment before applying multiples. The most direct listed proxy for regulated packaging (Catalent) left the public market in late 2024 [17]. Read disclosures for contract renewals, volume, utilization, labor productivity, customer concentration, capital spending, quality events, and acquisition performance rather than headline corporate revenue.

Private-market routes (direct exposure). This is where the industry actually is. Options range from direct ownership or acquisition of a regional co-packer (most qualify as small businesses under the $19.5M SBA threshold, so entry valuations and check sizes are modest [4]); to platform investment followed by local bolt-on acquisitions, or co-investing alongside private-equity roll-ups in food or pharma packaging [20][32]; to backing a specialized, compliance-heavy operation (pharma serialization, cosmetics, DTC fulfillment) that commands premium margins. Diligence should center on recurring-versus-project revenue, customer and site concentration, line utilization, quality certifications and recall history, management depth, maintenance backlog, capital and working-capital needs, and the portability of customer contracts.

Outlook (forward-looking). The structural tailwinds are intact and likely durable: continued brand outsourcing, e-commerce and DTC growth, private-label expansion, and rising pharmaceutical packaging demand tied to serialization and a strong drug-launch pipeline (including high-volume categories such as GLP-1 [glucagon-like peptide-1] injectables) [8][9][25]. Independent forecasters broadly project mid-to-high single-digit annual growth for the broader contract-packaging market through the early 2030s [8][9][10]. Against that, the business remains low-margin and labor-constrained — so value will accrue to operators that automate, specialize in regulated or high-service niches, and consolidate the fragmented base, rather than to generic commodity co-packers. The federal file itself contains no industry-wide growth, margin, or utilization estimate, so the honest conclusion is a fragmented, consolidatable service niche whose merits must be underwritten company by company. Near-term swing factors to watch: consumer-spending and retail-promotion budgets, the pharma launch cycle, reshoring/tariff shifts, and the pace of private-equity buying and exiting.

---

Sources

1. U.S. Census Bureau, "2022 NAICS 561910 — Packaging and Labeling Services (definition, illustrative examples, and exclusions)." https://www.census.gov/naics/?details=561910&input=561910&year=2022
2. U.S. Census Bureau, 2022 Economic Census — receipts and firm count, NAICS 561910. https://api.census.gov/data/2022/ecnsize.html
3. U.S. Census Bureau, County Business Patterns (CBP) — establishments, employment, annual and first-quarter payroll, NAICS 561910, 2023. https://api.census.gov/data/2023/cbp.html
4. U.S. Small Business Administration, Table of Small Business Size Standards (NAICS 561910 = $19.5 million average annual receipts), effective 2023. https://www.sba.gov/document/support-table-size-standards
5. U.S. Census Bureau, 2022 Economic Census — Concentration Statistics (CR4/CR8/CR20/CR50 and HHI), NAICS 561910. https://www.census.gov/programs-surveys/economic-census.html
6. U.S. Census Bureau, "County Business Patterns (scope)" and "Nonemployer Statistics." https://www.census.gov/programs-surveys/cbp.html; https://www.census.gov/programs-surveys/nonemployer-statistics.html
7. U.S. Census Bureau, "2022 NAICS 488991 — Packing and Crating" and "493110 — General Warehousing and Storage." https://www.census.gov/naics/?details=488991&input=488991&year=2022; https://www.census.gov/naics/?details=493110&input=493110&year=2022
8. Mordor Intelligence, "United States Contract Packaging Market Size & Trends Report (2025–2030)," 2025. https://www.mordorintelligence.com/industry-reports/united-states-contract-packaging-market
9. Precedence Research, "Contract Packaging Market Size, Share & Growth," 2025. https://www.precedenceresearch.com/contract-packaging-market
10. Straits Research, "Contract Packaging and Fulfillment Services Market — Growth Trends," 2025. https://straitsresearch.com/report/contract-packaging-and-fulfillment-services-market
11. Sonoco Products Company, Form 10-Q (Consumer Packaging segment), U.S. Securities and Exchange Commission, 2024. https://www.sec.gov/Archives/edgar/data/91767/000009176724000048/son-20240630.htm
12. Ryder System, "Co-packaging / Value-Added Services (Supply Chain Solutions)." https://www.ryder.com/en-us/logistics/co-packaging
13. GXO Logistics, "The Outsourcing Advantage / value-added services." https://gxo.com/the-outsourcing-advantage/
14. DHL Group, "DHL Supply Chain," 2025–2026. https://www.dhl.com/us-en/home/supply-chain.html
15. Thermo Fisher Scientific, "Patheon — clinical labeling, packaging, and supply services." https://www.thermofisher.com/us/en/home/products-and-services/biopharma.html
16. CCL Industries, "Investor Home." https://www.cclind.com/investors/investor-home/
17. Catalent, Inc., Form 8-K — completion of acquisition by Novo Holdings (~$16.5B enterprise value), SEC, December 2024. https://www.sec.gov/Archives/edgar/data/1596783/000119312524280922/d902883dex991.htm
18. PCI Pharma Services, "PCI Enters Next Phase of Growth With Strategic Investment" (Bain Capital, Kohlberg, Mubadala, Partners Group), 2025. https://pci.com/news/strategic-investment-bain-capital-kohlberg-and-mubadala; see also BioPharma Dive, "Private equity firms back PCI Pharma," 2025. https://www.biopharmadive.com/news/pci-pharma-bain-kohlberg-invest-drug-manufacturing/752947/
19. Sharp Services, "About Us" (Clayton, Dubilier & Rice ownership since 2021). https://www.sharpservices.com/about-us/
20. Capstone Partners, "Packaging M&A Update" (MSI Express/Nonantum; Smyth Companies/Crestview), 2025. https://www.capstonepartners.com/insights/report-packaging-ma-update/
21. HCI Equity Partners, "HCI Equity Partners Completes Sale of MSI Express," 2025. https://www.prnewswire.com/news-releases/hci-equity-partners-completes-sale-of-msi-express-302412127.html
22. Aaron Thomas Company, company profile, 2024. https://www.packaging.com/aaron-thomas-company/
23. Industrial Packaging, "The Top Contract Packaging Companies in the U.S." (fragmented market; regional specialists), 2024. https://www.industrialpackaging.com/blog/top-contract-packaging-companies; Thomasnet, "Co-packing Services and Companies in the USA" (2,500+ listed suppliers). https://www.thomasnet.com/articles/top-suppliers/co-packers-and-contract-packaging-services/
24. Packaging World, "Labor is a constant challenge" (temporary-labor turnover in contract packaging), 2024. https://packworld.com/issues/workforce/blog/13378141/labor-is-a-constant-challenge
25. U.S. Food and Drug Administration, "Current Good Manufacturing Practice (CGMP) Regulations" (21 CFR Parts 210–211). https://www.fda.gov/drugs/pharmaceutical-quality-resources/current-good-manufacturing-practice-cgmp-regulations
26. U.S. Food and Drug Administration, "Drug Supply Chain Security Act (DSCSA)." https://www.fda.gov/drugs/drug-supply-chain-integrity/drug-supply-chain-security-act-dscsa
27. GS1 US, "Drug Supply Chain Security Act — serialization and GS1 DataMatrix requirements," 2024. https://www.gs1us.org/industries-and-insights/standards/data-matrix
28. U.S. Food and Drug Administration, "Food Labeling & Nutrition" (21 CFR Part 101) and "Preventive Controls" (21 CFR Part 117 / FSMA). https://www.fda.gov/food/food-labeling-nutrition; https://www.fda.gov/food/food-safety-modernization-act-fsma
29. Federal Trade Commission, "Fair Packaging and Labeling Act." https://www.ftc.gov/legal-library/browse/rules/fair-packaging-labeling-act-exemptions-requirements-prohibitions-under-part-500
30. U.S. Food and Drug Administration, "Modernization of Cosmetics Regulation Act of 2022 (MoCRA)." https://www.fda.gov/cosmetics/cosmetics-laws-regulations/modernization-cosmetics-regulation-act-2022-mocra
31. Occupational Safety and Health Administration, "1910.1200 Hazard Communication." https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1200
32. Capstone Partners, "Packaging Market Update" (private-equity platform activity), 2025. https://www.capstonepartners.com/insights/article-packaging-market-update/; Packaging Dive, "Out: M&A megadeals. In: Streamlining and private-equity transactions" (2026 outlook), 2026. https://www.packagingdive.com/news/mergers-acquisitions-packaging-2026-outlook-divestitures-private-equity/810203/
33. IndexBox, "Contract Packaging Market Driven by E-Commerce and Private-Label Expansion," 2025. https://www.indexbox.io/blog/contract-packaging-market-driven-by-private-label-expansion-to-reshape-industry-through-2035/